| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 7.33 | 9.11 | 6.23 |
| 2024 | 3.63 | 11.39 | 2.13 |
| 2023 | 3.4 | 3.96 | 3.07 |
| 2022 | 3.52 | 3.98 | 2.57 |
| 2021 | 3.95 | 6.35 | 2.45 |
| 2020 | 2.75 | 3.26 | 2.26 |
| 2019 | 4.93 | 6.92 | 2.91 |
| 2018 | 10.57 | 18.4 | 4.31 |
| 2017 | 620.73 | 1330.75 | 14.86 |
| 2016 | 243.48 | 987.41 | 46.34 |
| 2015 | 61.08 | 81.13 | 45.01 |
| 2014 | 41.11 | 56.97 | 30.5 |
| 2013 | 41.87 | 46.28 | 35.84 |
| 2012 | 0 | -25.23 | |
| 2011 | 228.11 | 528.56 | 71.37 |
| 2010 | 62.75 | 72.21 | 55.56 |
| 2009 | 22.64 | 67.76 | 6.35 |
| 2008 | 10.7 | 20.73 | 4.48 |
| 2007 | 7.1 | 10.67 | 3.14 |
| 2006 | 3.2 | 4.35 | 2.19 |
| 2005 | 2.36 | 3.12 | 1.78 |
| 2004 | 4.27 | 7.45 | 3.05 |
| 2003 | 7.53 | 11.29 | 5.08 |
| 2002 | 7.39 | 8.99 | 5.5 |
| 2001 | 9.7 | 11.72 | 7.3 |
| 2000 | 6.96 | 9.07 | 5.51 |
| 1999 | 4.91 | 7.37 | 3.38 |
| 1998 | 4.75 | 6.75 | 2.89 |